Input Tag Shaping Using Pulse Insertion
Original Publication Date: 1988-Feb-01
Included in the Prior Art Database: 2005-Feb-14
In the IBM System/370 channel designs, delay lines are usually used to accept and decode data tags ('Service In' and 'Data In' signals on the Original Equipment Manufacturers Information interface). The described circuit, consisting of synchronous logic circuits, provides a method of eliminating the use of delay lines and of overcoming cable and noise distortion. This logic is applicable when the channel is performing data streaming, and only the data paths used for data streaming are described. In the actual machine design, the logic paths used for interlocked data transfer are multiplexed into the logic described, but are not described here. The following data-streaming requirements must be followed: The maximum data rate is 3.